diff --git a/third_party/2/google/protobuf/descriptor.pyi b/third_party/2/google/protobuf/descriptor.pyi
index 7e9bc6794..1d26f98ef 100644
--- a/third_party/2/google/protobuf/descriptor.pyi
+++ b/third_party/2/google/protobuf/descriptor.pyi
@@ -13,7 +13,7 @@ class DescriptorMetaclass(type):
     def __instancecheck__(cls, obj): ...
 
 class DescriptorBase:
-    __metaclass__ = ...  # type: Any
+    __metaclass__ = DescriptorMetaclass
     has_options = ...  # type: Any
     def __init__(self, options, options_class_name) -> None: ...
     def GetOptions(self): ...
diff --git a/third_party/2/yaml/__init__.pyi b/third_party/2/yaml/__init__.pyi
index 6efac209e..d20977007 100644
--- a/third_party/2/yaml/__init__.pyi
+++ b/third_party/2/yaml/__init__.pyi
@@ -40,7 +40,7 @@ class YAMLObjectMetaclass(type):
     def __init__(cls, name, bases, kwds) -> None: ...
 
 class YAMLObject:
-    __metaclass__ = ...  # type: Any
+    __metaclass__ = YAMLObjectMetaclass
     yaml_loader = ...  # type: Any
     yaml_dumper = ...  # type: Any
     yaml_tag = ...  # type: Any